It being heavy and having healthy eyes and nostrils are good signs. No consumption generally means no defecation. When you soak your animal, have you observed it to actually drink? If so, you can add baby food to the water. Getting something in may get its appetite going again. Like exoticsdr said, they can be somewhat skittish when young. I have one that is very cool with my presence. The other will literally sprint off as fast as he can if he even turns around and sees me just standing near him. He is starting to mellow a little, but it can be a slow process for some individuals. Have you tried letting it walk around on untreated lawn (especially mixed grasses, clover, and weeds)? It may find something it likes. If you do this, be careful no to become distracted such that it slips out of sight for too long. Alternatively, if you have an outdoor area for it to stay and the temperatures are adequate, you could leave it to it and it may feel safer and may graze more readily when you are not present. Just keep an eye on it and do not over-fret or crowd the animal for now. I managed to turn around a very sick Aldabra tortoise once, so yours having a much healthier start gives you a greater advantage than I had.